#include <avr/io.h>
#include <util/delay.h>

#define BLINK_DELAY_MS 1000


int main(void)
{
    /* set pins 0-3 of PORTB for output*/
//  DDRB = 0xFF;
//  DDRB |= _BV(DDB0);
//  DDRB |= _BV(DDB1);
//  DDRB |= _BV(DDB2);
//  DDRB |= _BV(DDB3);
    //PORTB = 0x00;

    PORTB = 0x02;
    _delay_ms(1000);
    while(1) {

        PORTB = 0x05;
        _delay_ms(1000);
        PORTB = 0x02;
        _delay_ms(1000);
    };
    return 0;
}

int main2(void)
{
    /* set pins 0-3 of PORTB for output*/
    DDRB = 0xFF;
    DDRB |= _BV(DDB0);
    DDRB |= _BV(DDB1);
    DDRB |= _BV(DDB2);
    DDRB |= _BV(DDB3);
    //PORTB = 0x00;

    PORTB = 0x05;
    _delay_ms(1000);
    //main2();
    while(1) {};


}